Core Java - Interview Questions and Answers for 'Java5' - 8 question(s) found - Order By Rating Q1. What are the Wrapper classes available for primitive types ? Core Java
Ans. boolean - java.lang.Boolean Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve rare Q2. What are concepts introduced with Java 5 ? Core Java
Ans. Generics , Enums , Autoboxing , Annotations and Static Import. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve rare Q3. When were Enums introduced in Java ?
Ans. Enums were introduced with java 5. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Ans. Autoboxing is the automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 2 Companies basic frequent Ans. An enum type is a special data type that enables for a variable to be a set of predefined constants Sample Code for enum Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve basic frequent Ans. By static import , we can access the static members of a class directly without prefixing it with the class name. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 4 Companies basic frequent Q7. What is Scanner class used for ? when was it introduced in Java ? Core Java
Ans. Scanner class introduced in Java 1.5 for reading Data Stream from the imput device. Previously we used to write code to read a input using DataInputStream. After reading the stream , we can convert into respective data type using in.next() as String ,in.nextInt() as integer, in.nextDouble() as Double etc Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve basic Q8. Which of the following was not introduced with Java 5 ?
Ans. Strings within Switch Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve
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Sample Code for enum
Which of the following was not introduced with Java 5 ?
